pipee



(No Model.)

A'. GURNEY & R. .H. PIPER.

LEATHER CHAMPERING MAGHINE.

No. 247,340. Patented Sept.-20, 1881.

WITNESSES: mymon:

N. PETERS. Pholo-hlhognphcn Wnxhmgion. nv c UNITED STATES PATENT OFFICE.

ALFRED GURNEY AND ROBERT H. PIPER, OF NEWBURYPORT, MASS.

LEATHER-CHAMFERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 247,340, datedSeptember 20, 1881.

Application filed J une 24, 1881. (No model.)

To all whom it may concern Be it known that we, ALFRED GURNEY and ROBERTH. PIPER, both of N ewbury port, in the county of Essex and State ofMassachusetts, haveinvented certain useful Improvements inLeather-Ohainl'ering Machines, of which the following is aspecification.

Figure 1 is a plan view of our improvement. Fig. 2 is a side elevationof the same. Fig. 3 is a sectional side elevation of the same, takenthrough the line w m, Fig. 1. Fig. 4 is a sectional end elevation of thesame, taken through the line y y, Fig. 3.

The object of our invention is to facilitate the operation ofohaml'ering the edges of shoesoles and promote accuracy in the work.

The invention consists in a leather-chainferin g machine constructed ofa stock faced with metal plates, the knife secured in place adjustablyby set-screws, the adjustable guard for holding the leather down whilebeing cut,

' and the adjustable gage for regulating the depth of the chamfer, aswill be hereinafter fully described.

1n the drawings similar letters of reference indicate correspondingparts.

Arepresents the stock of the machine, which is made of wood or othersuitable material, and is faced upon its four sides with metal plates B.The top plate B should be made of steel to prevent it from being wornuneven, and thus causing imperfect work.

0 is the knife, which passes through a slot, 1), in the stock A. Theslot D is made wide in its lower part, and tapers to the thickness ofthe knife U at its upper part, where it passes through the top plate B,as shown in Fig. 3, so that the said knife 0 can be adjusted to give anydesired inclination to the chamfer or bevel of the sole-edge. Theinclination of the knife 0 is regulated by the set-screws E, which passthrough the upper and lower sides of the stock knife forward as it wearsby use and sharpening, and thus allows a knife to be used longer thanwould otherwise be possible.

The leather or sole to be operated upon is held down upon the plate Bwhile being cut by the spring G, which is secured at its rear end to thestock Abya clamping-screw, H, as shown in Figs. 1, 2, and 3. The rearend of the spring G is slotted longitudinally to receive the screw H, sothat it can be adjusted forward or rearward, as may be required. Theinner edge of the spring G is cutaway to form a space to receive thegage I, the shank of whichis extended laterally, and is bent downward atright angles to overlap the forward side of the stock A, where it issecured to the said stock by a screw, J. The downwardlyprojecting shankof the gage I is slotted to receive the fastening-screw J, sothat thesaid gage can be set back, as shownin Fig. 3,when it is desired tochamfer the sole to a feather edge, and set forward, as shown in Fig. 2,when it is desired to chamfer the sole to a square or mock-welt edge.

With this construction the operator can chainl'er the soles quickly andto any desired depth without any danger of nicking the edges of thesoles, and thus spoiling them,

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. A leather-chainferin g machine constructed,substantially asherein shown and described, of the stock A, faced withmetal plates B, the knife 0, the set-screws E F, that secure the saidknife adjustably in place, the spring-guard G, and the adjustable gageI, as set forth.

2. In a leather-chamferin g machine, the combination, with the stock A,the adjustable knife 0, and the adjustable guard G, of the adjustablegage I, substantially as herein shown and described, whereby the solecan be chamfered to a feather edge or a square edge, as set forth.

ALFRED GURNEY. ROBERT H. PIPER. Witnesses:

DAVID J. MERRILL, HUGH WALKER.

